Shutter-fastener



(No Model.) v v M. A. PIGOTTi SHUTTER FASTENER.

Patented July 4, 1882.

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UNITED STATES PATENT OFFICE.

MICHAEL A. PIGOTT, OF ST. LOUIS, MISSOURI.

SHUTTER-FASTENER.

SPECIFICATION forming part of Letters Patent No. 260,708, dated July 4, 1882.

Application filed May 8, 1882. (No model.)

To all whom it may concern:

Be it known that I, MICHAEL A. PIGOTT,

of the city of St. Louis, in the State of Misis a section at 5 5, Fig. 1; and Figs. 6 and 7 are detail views.

The object of my invention is to provide a means whereby shutters, more especially metal shutters, can be unlocked, so as to automatically swing open in cases of fire, by means of water from the extinguishing-hose.

The novelty of my invention will appear in the claims.

A A represent the shutters, having hinges B. In the face of the shutters are openings provided with slats O, facing down, so that the water can enter from below.

D D are chutes secured to the inside of the shutters by out-turned lugs d and rivets d. The sides of the chutes, with the exception of the out-turned flanges d, pass through and are flush with the inside of the shutters, (see Figs. 5 and 6,) and they receive the slats 0. (See Fig. 5.)

E E are waterreceiving boxes or troughs,

the lever G extends over to and engages with a hook, h, secured to the shutter A. Thus the two shutters are locked together at top when closed, and they are locked together at bottom by an arm, I, and hook t". The arm I and lever G are connected together by a rod, J,

and thus it will be seen that as the box E fills with water it will gravitate, raising the lever G and arm I, disengaging them from their respective hooks, which will allow the shutters to swing open under the influence of a spring, weight,orother suitable attachment. Thelevor H engages beneath a pin, 9, on the lever Gr, so that water entering the box E will unfasten the shutters.

The lever G, arm I, and hooks h ishould have friction-rollers g h, t", and 6 as shown. As the chutes extend down into the boxes, they form vertical guides for the boxes. The water can be allowed to escape from the boxes by any suitable means.

I claim-- 1. The combination of shutters A A with slats (J, chutes D D, boxes E E, rods F F, levers G H, and hook h, substantially as set forth.

2. The combination of shutters A A with slats O, ch'utes D D, boxes E E, rods F F, levers G H, hook h, rod J, arm I, and book i, all substantially as set forth.

MICHAEL PIGOTT.

\Vitnesses GEo. H. KNIGHT, AUGUST WEBER. 

